Search for quark contact interactions in dijet angular distributions in pp collisions at √s = 7 TeV measured with the ATLAS detector

Authors	G. Aad [Unknown] et al. S. Bentvelsen A.P. Colijn P. de Jong L. de Nooij A.D. Doxiadis P. Ferrari H. Garitaonandia M. Gosselink M.S. Kayl E. Koffeman H. Lee F. Linde J. Mechnich I. Mussche J.P. Ottersbach M. Tsiakiris E. van der Kraaij Z. van Kesteren I. van Vulpen J.C. Vermeulen M. Vreeswijk
Publication date	2011
Journal	Physics Letters B
Volume \| Issue number	694 \| 4-5
Pages (from-to)	327-345
Organisations	Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for High Energy Physics (IHEF)
Abstract	Dijet angular distributions from the first LHC pp collisions at center-of-mass energy √s = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb−1. Dijet χ distributions and centrality ratios have been measured up to dijet masses of 2.8 TeV, and found to be in good agreement with Standard Model predictions. Analysis of the χ distributions excludes quark contact interactions with a compositeness scale Λ below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits.
Document type	Article
Note	ATLAS Collaboration
Language	English
Published at	https://doi.org/10.1016/j.physletb.2010.10.021
Downloads	358945.pdf (Final published version)
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